P260 F07
Quiz # 6
NAME_
More on the velocity selector. Suppose we have set up the crossed E and B fields throughout a region E of space so that v , where v is the velocity of a + charged particle projected to the right and B moving perpendicular t
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Assignment-01
Due: 10:00am on Monday, September 13, 2010
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HW6
Due: 11:00pm on Thursday, April 1, 2010
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HW3
Due: 11:00pm on Thursday, February 25, 2010
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Assignment-06
Due: 10:00am on Monday, October 25, 2010
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Physics 260, Group Work #8, Fall 2013.
Names:_
x
r
I
Recall the magnetic field a distance r above the center of a wire of length 2L has
magnitude
mI
B= 0
2p r
L
r 2 + L2
and direction given by the righthand rule. Consider a SQUARE coil made up of four
wir
Phys 260, Fall 2013
Computer Homework 3: Gausss Law
Due in class Thurs., October 10
A sphere of radius 1 cm with 10 nC uniformly distributed over its surface is placed at
<5 cm, 0, 0>, and a sphere of radius 2 cm with -5 nC uniformly distributed over its
Phys 260, Fall 2013
Final Exam Cover Sheet
Some useful quantities:
1
= 9 109 Nm2 /C2
40
electron mass me = 9.1 1031 kg
proton mass mp = 1.67 1027 kg
N/C
1 Tesla = 1
m/s
0 = 8.85 1012 C2 /(N m2 )
k=
e = 1.6 1019 C
0 = 4 107 T m s/C
Force on a point charge:
Physics 260 Fall 2013, Computer Homework 2.
Due in class Thurs., Sept. 26.
Consider a sphere of radius R=10 cm made of an insulating plastic. It is possible
to accelerate protons into the plastic in such a way that a uniform charge density
(charge/volume)
Physics 260, Fall 2013: Group Work 3 Solutions
1. The calculation is easiest if you do it all in vector notation, resolving everything into x and
y components from the outset. The displacement vectors from the two charges to a point
x, y = r cos , sin are
For each example, show the direc3on of the electric eld at the posi3on X.
e.)
X
a.)
+q
+q
(r)
X
+q
+q
uniform charge distribu3on
f.)
X
b.)
+q
+q
+q
+2q
(r)
X
g.)
c.)
-q
+q
+q
+q
-q
+q
Physics 260, Fall 2013: Group Work 9
Names:_
Hall Effect: Consider a thin slab of conducting material of length L and cross-sectional
area A, carrying a total current I in the positive x direction, as
shown.
1. Suppose that the current is created by parti
Physics 260, Fall 2013. Group Work #7
A spherical shell of radius R has charge Q distributed uniformly over its surface. A
small, circular piece of radius a < R is removed from the sphere.
1. Find the electric field in the center of the hole left in the s
Physics 260 Fall 2013, Computer HW #5
Designing magnets:
Many electromagnets are based on the current loop: a circular loop of wire with a current I. We
will make three magnets using loops and investigate the magnetic fields. Recall that the basis for
c
_
Physics 260 Fall 2013, Group Work #6.
c \ jk cN
Names:
1. An insulating sphere of radius R has a positive charge Q uniformly distributed
throughout its volume. Find the electric field and the electric potential as a
function of distance r from the cente
Phys 260, FaIl 2013, Group Work #4
Underground telephone wires and power lines are sometimes placed inside metal pipes to protect them
from the effects of lightning strikes (among other reasons). When lightning hits, it charges up the pipe
but does not ca
Physics 260 Fall 2013, Group Work #3.
Names:_
1. Consider an electric dipole made up of two small charged point particles such that
the dipole moment is qs,0,0 or p qsi . The dipole stretches from x=-s/2 to
p
x=s/2.
a) Use superposition to find the x comp
Physics 260, Fall 2013, Computer HW#0
Ungraded; due in class Thursday, September 12
The goal of this computer homework is to get everyone up to speed on VPython. If you took
Phys 160 last semester, a lot of this should look familiar, but I encourage you s
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HW8
Due: 11:00pm on Thursday, April 15, 2010
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HW9
Due: 11:00pm on Tuesday, April 27, 2010
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Assignment-03
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Assignment-02
Due: 10:00am on Wednesday, September 22, 2010
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Assignment-05
Due: 10:00am on Monday, October 11, 2010
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Assignment-09
Due: 10:00am on Monday, November 29, 2010
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Assignment-08
Due: 10:00am on Thursday, November 18, 2010
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